What is the function of the drive axle?

[VonSawyer]

The functions of the drive axle are: 1. To transmit the engine torque from the universal transmission device to the driving wheels through the main reducer, differential, and half-shafts, achieving the purpose of reducing speed and increasing torque; 2. To change the direction of torque transmission through the bevel gear pair of the main reducer; 3. To enable differential action between the two wheels through the differential, ensuring that the inner and outer wheels turn at different speeds; 4. To bear loads and transmit forces through the axle housing and wheels. The drive axle is an important component of the transmission system and is an assembly with a relatively high failure rate. Although the failure rate is not high in passenger cars, some abnormal noises during driving are related to it.